Explanation

The name “red tide” comes from the fact that the overgrowth of algae can cause the colour of the water to turn red.

The red tides caused by the dinoflagellate Gonyaulax (unicellular algae) are serious

because this organism produces powerful toxins (saxitoxin and gonyautoxins) that can kill aquatic organisms.

**

Cephaleuros virescens which is Green algae

Fucus is a genus of brown algae.

Explanation

Asteraceae, also called Compositae

The Asteraceae is one of the largest families with one ovary which is inferior

The number of ovules present in the ovary of Asteraceae is 1

Explanation

Facultative organisms can live on organic residues as saprophytes;

but they can also infect living plants as parasites when conditions are favorable.

Those organisms that live primarily as saprophytes are called facultative parasites.

Those organisms that live primarily as parasites are called facultative saprophytes.

Explanation

اگر آپ کو  جواب معلوم تو اس نمبر پر وٹس ایپ کریں,

0308-2533000